Boat-propelling mechanism



April 20 1926. v

- P. MEDIATE BOAT PROPELLING MECHANISM Fi1ed Jan. 16. 1926 I 2 Sheets-:Shet 1 azzZ Mediate INVENTOR I av ATTORNEY April 20 1926. 1,581,856

P. MEDIATE BOAT ,PROPELLING MECHANISM Filed Jan. 16, 1926 2 Sheets Sheet 2v 1 u n n n H n u 1 fazz/ Media 16 INVEN OR Patented Apr. 20, 1926.

PAUL MEDIA'IE, or CLEVELAND, OHIO.

BOAT-PROPELLING MECHAN ISM.

Application filed January 16, 1926. Serial No. 81,844.'

T all whom it may concern:

Be it known that 1, PAUL MEDIATE, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented new and useful Improvements in Boat-Propelling Mechanism, of which the following is a speci fication.

This invention relates to power apparatus for propelling ships or boats, and has for its object the provision of novel means actuated by any suitable motor and acting to draw in water through a suitable conduit in thehull,

these various drive or power elements 00- operating to propel the boat through and along the water in a rapid manner and with the expenditure of comparatively little power.

' An important and morespecific object is the provision of'a propelling mechanism of this character in which use is made of a pluto throw either or all of the different devices into operation at will depending upon circumstances.

An additional object'is to provide a pro pelling apparatus of this character which will be comparatively simple and inexpensive in manufacture, easy to install and operate, positivein action, efficient and durable in service, and a general improvement inthe art.

With the above and other'objects and ad vantages in view, the invention consists in the details of construction and the arrangement and combination of parts to be hereinafter more fully described and claimed, and illustrated in the accompanying drawings, in which Figure 1 is a plan view of a boat or vessel equipped with the apparatus.

Figure 2 is an end elevation thereof.

Figure 3 is a vertical longitudinal section taken on the line 33 of Figure 1, and

Figuredis a vertical cross sectional view taken on the line 4-4 of Figure 3.

Referring more particularly to the drawings, the numeral 10 designates the hull of a ship or vessel which may be of wood, metal or any other desired construction and which may be of any-preferred size, these details being absolutely, immaterial so far as the essence of the invention is concerned.

In carrying out the invention the hull is provided with a longitudinally extending conduit 11 which may be built thereinto in any desired manner and whichmay be of any desired cross sectional area, this conduit communicating with the body of water in which the'vessel floats so that therewillbe unobstructed flow of the water from front to back or from stem to stern of the vessel. air through tunnel. members or channels 1n the boat and also acting to cause a flow of Above the water line the vessel'is further provided with a plurality oflongitudinally extending passages 12 and 13 arranged in series and in superimposed relation, there being a plurality of the passages 12 located above a preferabl correspondingnumber of passages 13. T16 cross sectional area of these passages is likewise an immaterial detall as variations may be resorted to if found advisable. At its rear end the conduit 11 is somewhat enlarged toidefine a casing 14 and the passages 12 and 13 areenlarged to de-' is ordinarily located between the rear end of the hull and the rudder mechanism 20. Journaled trans v'ersely within the casing member 14 or enlargement at the rear end of the conduit, 11 is a shaft 21' suitably geared to the propeller shaft 18 and carrying a propeller wheel 22 here represented as embodying a hub provided with radially extending curved arms or blades 23. Obviously, when this shaft 21 is rotated the ro-.

tation of the wheel 22 will operate to create suction upon the water within the conduit 11 so that the water will be drawn rearwardly along the conduit, resulting in forward movement of the vessel.

Journaled transversely through the casing members 15and 16 at the rear ends of the passages 12 and 13 are shafts 2e and 25 respectively carrying propeller wheels 26 and 27' preferably of the same curved vane or blade type as the propeller wheel 22. The shafts 24; and 25 also carry bevel gears 28 and-29 meshing with bevel gears 30 and 31 respectively on the upper ends of, vertical shafts 32 and 33 which'have their lower ends carrying clutch elements 3% and 35 respec- :that the rotation of :the I motor '17 will operate to drivethe propeller shaft and the pro peller :will. act-t0 move the vessel forwardly :in1t-heusuml :manner. At :the same time, the :rotationoi' the :wheel or propeller member22 will operate to draw the water .rearwardly through the .eonduit ll-and thereby increase ithekforward movement/ref the aiessel. If :the ielutch :members 5011 ;the vertical shafts i32 and .38 ;are thrown into ,oporati: to engagement it is quite clear :that the :Wheels 12% and driven i'hereby and located at :the rear ends of he passages 12mm [13 willaot to produce air draft rthrough these passages and :this air draft will, by tlieaetion, naturall operate so .assist irn {the iorward movement of :the 1v ssel. 13y ,properl-y ;mani pn,l ating wwha-tever al ver means :is EOvided in eonn'ecrtion with lfihe 1 shite-h devices any 01 all of these various -lri-ve devices ll'lity he throwniinto or, I out of operation at will depending upon circumstances. fllt is really believed :that the 130.11- ;stnuet'ion, operation and advantages will be readily apparent to one skiled in the art without further explanation.

MT-hile I have :Show;n;-and described the preferred embodiment of the invention, it

Having thus described the invention, I claim 1. In a boat propelling mechanism, a hull provided below the Water line with a longitudinallyextending water conduit and above the waterline with a plurality of longitudinally extending air passages, shafts journaled transversely of the air passages and the :Water conduit and carrying propeller Wheels, and means for selectively driving said propeller wheels.

2. In a boat propelling mechanism, a hull :provided below :the Water line with a longitudinally extending conduit and above the Water line avith a plurality of banks of longistudiiiafly extending air passages, shafts jonrnaled transversely of the Water conduit and banks of air passages and earryingpro- .peller Wheels haai'ing curved vaneslor blades,

a slnotor, -a sha-iE-t diiivenlby :the .motor and carrying a propeller located at the stern of sthe hull, and means ,operati-vely r-connected with said last :named shait fordrivingsaid propeller --wheels.

1111a boat :propelling mechanism, :a hull pronided lheloiv athe Water line with a longiatudinally oextendingconduit and above the water line avitha zpilurality of19a11ksof longitudinally exten ing =air passages, shafts journaled transversely of the Water 'eonduit and banks oft {air passages and carrying ,pro

'peller wheel havingeurved vanes or blades, a motor, :a shefftchwemby lihGjIHDtOlzID-Gl carrying .a propeller located atthe stern of the ilmll, and means operatively (connected with said last named shait "for adrivingsaid propeller Wheels, ncluding vertically extending ,s'haiits :opQoratmzel-y connected with the shaft of said propeller wheels, and Clkltcll/nlfilllbers interposed in said last named shafts.

, in testimony :wheresiijl myisignature.

PAUL MEDIA'IE. 

